Fair Value Measurements and Derivatives - Fair Value, Assets Measured on Recurring Basis (Details) - USD ($) $ in Thousands	Aug. 31, 2020	Feb. 29, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	$ 45,889	$ 37,425
Foreign Currency Contract, Asset, Fair Value Disclosure	(993)	(476)
Investments, Fair Value Disclosure	1,838	2,282
Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Fair Value Disclosure	1,838	2,282
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	45,889	37,425
Foreign Currency Contract, Asset, Fair Value Disclosure	0	0
Investments, Fair Value Disclosure	1,838	2,282
Fair Value, Inputs, Level 1 [Member] | Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Fair Value Disclosure	1,838	2,282
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	0	0
Foreign Currency Contract, Asset, Fair Value Disclosure	(993)	(476)
Investments, Fair Value Disclosure	0	0
Fair Value, Inputs, Level 2 [Member] | Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Fair Value Disclosure	$ 0	$ 0